Fountain pen



Nov. 8, 1927.

J. c. PoETz FOUNTAIN PEN Filed Mayl s, 1925 Fi -Zf Fig. 51

Fly. 1.

INVENTOR. ffy/ WM? B YaQmQ/ ATTonm Patented Ndv. 8, 1927.'

i UNITED sT JOHN C. IPOETZ, OF ST. PAUL, MINNESOTA.

FONTAIN PEN;

Application filed May s,

This invention relates to fountain pens `of the class having ay lling device, and the object isto kprovide a simple and eiiicient pen of said kind involving the use of anink sucking plunger with an'exte'nsible operat# ing rod. Y Y

In the accompanying drawing:

Fig. 1 is a vertical elevation'of theV pen ready for use andlits cap `9 in position on the rear end.

' Fig. 2 is a diametrical section oi?v the` greater part oi' Fig. 1 with thecap omitted,

and the operating rod telescoped into the plunger.

Fig. 3f is an elevation of theshell of my pen the' upper part of which is shown 1n section and the plunger operating rod shown in extended position.

p Fig. 4 is a vportion, of Fig. 3 viewed from;V l the right.

Fig. 5 is an enlarged section on line 5-5 I in Fig. 3 or may cross section showing thel telescoping arrangement of all the main parts except the cap 9 in Fig. 1. Y Y

Referring to the drawing by reference numerals, 6 designates the pen point secured inthe usual or hollow bodyS of the pen holder, which in the present case, as in most cases, has a cap 9 threaded at 10 or adapted to be frictionally held upon either end of the hollow. body. f

The part7 has a duct 11 through which ink ows from the body tube 8 to the pen during writing and through which the ink is filled into the tube by suction when a plunger 12 is pulled upward inthe tubeS by a rod made of .telescoping sections 13,14, the latter having ahead 15 with a projection 16 fitting snugly as a stopper in the top end of the body tube 8 when the rod sections lare telescoped 'and pushed into the plunger after the latter is pulled as far as possible toward the top end of the device.

To explain this structure more fully it will be seen that the body 8 has near its upper end an internal pin 17 for the top end of the plunger 12 to engage and have its 50 vupward movement stopped. In Fig. 4 is best shown that if the plunger 12 is slightly rotated it may have its notch 18 receive the pin 17 and by further rotation the pin'will getas 17,a into a horizontal extension l19 of the notch and will thus prevent accidental descent of the plunger. The plungerhas a be considered a phantoml front part 7 of the shell 1926. vsmal No. 107,670.

solid bottom andV sides in the formlof a piston open at the top andinside'of itv slides thetubular rod section 1'3rwhichL has an external'longitudinal groove 2() with a horizontal extension21 at its lowert end. This groove Vis slidable on an internal pin or'stud 22 in the lupper end of theplunger 12. In like manner the tops'ection'14 of the rod has a lateralgroove 23 with an angular extension24 at its lower endv anda vcircular' extension around' the lsection close -below the stopper 16 ofi" cap15, saidgroove is engaged by a pin orv studr25 xed in the rod seotion 13.

lith this arrangement` itl will befundenstood that 'in operation when the body tube y,

or ink magazine 8 is to be iilled with-Fink itis held infonehand while thel operatorI turns with his other hand the `headl15 sufficiently to the left tobring therod sections with their grooves into line with the pinsy 22 and 25 and then pulls rod sections into fully extendedposit-ion.l Next he turns the head 15 andrthereby the rod section to the right as far as they will go. This causes all the horizontal extensions 2l and 24 of the.V

groovesrto enga-ge the pins 22 and 25 and also Vto disengage the notch 19 .from thepin n 17. V,I-Ie then pushes the rod and plunger downward to `their limit, holds the front end of the pen in an ink-well while pulling the rod and plunger back again to their upper limit. The pen holder isthus filled with ink sucked in by the plunger 12, whereupon the rotated rodjcauses the plunger pin 17 toengage as 17a'in Fig. 4, after whichfthe rod sections are pushed down into the plunger, and the head 15%-16 is closed tightly.

I claim: Y. .A 1. In a fountain pen,fa cylindrical body lcomprising an ink reservoir and having a duct leading't-o the pen point, an upwardly opening cylindrical plunger, oscillatable in saidv body; an operating' rod comprising two sections adapted to be telescoped into each other and yinto the plunger; a head at the 1 upperV end of said rod and adapted to closek the top end of the cylindrical body when the rod is telescoped into the plunger and the latter is Vin spaced relation to thepen end of the fountainv penymeansy :tor interlocking I the sections'olz' the rod in extended andincontracted positions and means limiting the raising of the plunger.

2. The structure speclti-ed in claim'. 1, in whichthe means for limiting the raising of V which the means for lirniting theV raising ofy the plunger consistsof alug crpin at thev `v the plunger consists` of a lug or pin at the innerside of the upper end of the cylinder,

vand said plunger having also an L-shaped notch in its top adapted'to interlock with said pin to prevent accidental descent of the plunger. Y

8. vThe structure specified in claim` 1,.n

innervside of the. upper end of the cylinder, andV said plunger having also an L-shap-ed notch in its top adapted to interlock with said pin to prevent accidental descent of the plungeigsaid plunger having also near its top end an internal stud and the rodlsecton slidalole in theV plunger having an L-shaped groove slidable on said stud, the foot of said L beingyarranged in reverse direction offthe VL-,shaped notch in the plunger.

4. The structure specified in claim 1,; in

Y Which thevmeanshfor limiting the raising of the plunger consists of a lug or pin at the nner'side of the upper end of the cylinder.

andy said plunger .having also an L-shaped notch in its top adapted to interlock with saidpin to prevent accidental Vdescent 'of the plunger, said plunger having also near its top end an internal stud and the rod section slidabe 1n the plunger having an L-shaped Oreoveslidabl-e on said stud the foot of said lbeing arranged in reverse direction of the L-shaped notch in the plunger; said rod section in theplunger being also tubular and having an inside stud near its upper end and the next highervrod Section having an` L- shzilpedveternal groove slidahle onthe latter groove, thus ymaking thetop SectionVV and its head, When in Vraised position, rotatable independently of the plunger and thel neXt section above it. 1

JOHN Ve. ronrz.

En testimony whereof; aiflxmy signature` I I 

